Combined weatherstrip and sash balance



Feb. 25, 1964 w. 1-. DE BRUYN ETAL 3,121,923

COMBINED WEATHERSTRIP AND SASH BALANCE 2 Sheets-Sheet 1 Filed 001:. 26. 1961 INVENTORS.

.56/7 dam/n M \S/DG/AQS BMWM ATTORNEK Feb. 25, 1964 w. T. DE BRUYN ETAL 3,121,923

COMBINED WEATHERSTRIP AND SASI-I BALANCE Filed Oct. 26, 1961 2 Sheets-Sheet 2 A TTOR/YEK United States Patent Ofiiice 3,121,923 Patented Feb. 25, 1954 3,121,923 ME1INED JVEATHERdTPlP AND SASH BALANCE William '1. De liruyn and Benjamin M. parh, both of Grand Rapids, Mich, assignors to Grand Rapids I-Iardware Company, Grand Rapids, Mich.

Filed 0st. 26, 1961, Ser. No. 147,925 12 Claims. (Cl. 20-5...4)

This invention relates to a combined Weatherstrip and sash balance for slid-able sash type of windows and one desirable for windows which include upper and lower sash. The principal objects of this invention are,

First, to provide a combined Weatherstrip and counterbalance unit which includes stop means limiting the opening movement of both upper and lower sash.

Second, to provide a combined Weatherstrip and counterbalance unit in which the stop means constitutes a unitary part of the unit for shipment, storage, and installation.

Third, to provide a combined Weatherstrip and counterbalance unit having these advantages in which the stop means is inconspicuous both with the windows closed and with the windows open.

Objects relating to details and economies of the invention will up, ear from the description to follow. The invention is defined and pointed out in the claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing, in which:

FIG. 1 is a perspective view including a window frame, upper and lower sash, and combined Weatherstrip and sash balance of our invention, the parts broken away to show the relation thereof and certain parts being shown conventionally.

FIG. 2 is a fragmentary view in vertical section, parts being broken away to show structural details.

FIG. 3 is an inside view of a combined Weatherstrip and counterbalance embodying our invention.

FIG. 4 is an enlarged fragmentary view in horizontal section on a line corresponding to line 4-4 of FIG. 3.

FIG. 5 is an enlarged fragmentary view on a line corresponding to line 5-5 of FIG. 2.

FIG. 6 is a perspective view of the sash stop embodiment of our invention illustrated in FIGS. 1 to 5 inclusive.

FIG. 7 is an outer perspective view of a modified form or embodiment of our invention.

FIG. 8 is a fragmentary view of the embodiment shown in FIG. 7.

FIG. 9 is a perspective view of another modification or embodiment of our invention.

FIG. 10 is a rear perspective view of another embodiment of our invention.

FIG. 11 is a fragmentary view through a portion of a window casing showing the Weatherstrip and the sash stop unit of our invention illustrated in FIG. 10.

In the accompanying drawing 1-1 represents the jambs of the window frame, 2 the sill and 3 the top member. These are conventionally shown and the joints or connections therefor are not illustrated. 4 represents a lower sash and 5 an upper sash. 6 represents the lock for the sash. These parts are conventionally illustrated. It will be understood that commonly the sash locks or catches include a pivotal member and coacting keeper, and one of the accomplished objects of the invention is to provide a combined Weatherstrip and counterbalance in which the parting cross piece between the upper and lower sash is not marred or disfigured as a result of manipulation of the sash in relation to each other.

The Weatherstrip, designated generally by the numeral 7, is formed of a strip of sheet metal conformed to provide a central parting strip 8 and forwardly projecting flanges 9 on both longitudinal edges thereof, which coact with the parting strip to form forwardly facing channels or slideways 10 for the sash, the lower sash being vertically slidable in the inner channel and the upper sash in the outer channel. The edges of the flanges 9 are folded inwardly at 11 and in the embodiment shown in FIGS. 1 to 5 inclusive they are spaced inwardly, as illustrated in FIG. 4, the purpose of which will be pointed out. That is an important feature and is present in the preferred embodiment of our invention.

The counterbalance, designated generally by the numeral 12, in this embodiment is provided with housings and comprises the counterbalance springs 13 supportedly mounted at their upper ends and provided with sash engaging members 14, see FIG. 2. As this feature forms no part of our present invention, it is not illustrated in further detail.

The opening movement of both the upper and lower sash is checked or limited by the separate sash stops designated generally by the numeral 15, and these are duplicates. In the preferred embodiment illustrated in FIGS. 1 to 6 inclusive, these stops 15 are formed integrally of sheet metal and comprise body portions of inwardly facing channel section having inwardly projecting inner and outer arms 16 and 17, the outer arm being provided with an outturned flange 18 which is engaged with the inturned flange 11 of the Weatherstrip, the parts be ng fittingly engaged as is illustrated. The arm 14 and the flange 18 of these stops are extended to provide channel shaped prongs 19, the edges of which in this preferred embodiment are notched or toothed at 20. These stop members are slidably engaged with the inturned flanges on the weatherstrips, being shown in their projected position in FIG. 3, but in shipped and initial installing position they are in retracted position, with the tips thereof in alignment with the ends of the weatherstrip so that the Weatherstrip may be inserted between the sill and the top frame member 3 and these prongs or nails driven into the sill or the top member of the frame. This provides an effective anchoring means for the stops and they do not require any further means for securing to the sash slide members, that is, either in general assembled relation or when installed. In practice, the parts are frictionally engaged so that the stops do not fall out of the assembled unit.

In the modification shown in FIGS. 7 and 8, the stop member, designated generally by the numeral 21, is of inwardly facing channel section as is illustrated, and is provided with an anchoring flange 22 corresponding to the flange 18 and has inturned ends 23 having openings 24 therein for the nail or spike 25, which desirably has a slight enlargement 26 in spaced relation to its tip for the double purpose of keeping the spike or nail in as sembled relation with the stop member and providing a slight enlargement engaging the frame.

In the embodiment shown in FIG. 9, the body member 27 is provided with a flange 28 corresponding to the flanges 18 and 22, and has a cylindrical stop portion 29 which is bent to receive the nail 30. In the embodiment shown in "FIGS. 10 and '11, the stop member, designated generally by the numeral 31, is of general channel cross section and is provided with an inwardly projecting flange 32 on its outer arm 33 and with an inturned flange 34 terminating in a laterally disposed edge 35, these parts being springably associated so that in initial position the edge 36 is in springable thrust engagement with the flange 32, see FIG. 9. In this embodiment, a prong 37 is an extension of the bowed portion of the stop and it is provided with teeth 38 corresponding to the teeth 2d of the embodiment shown in FIG. 6. This embodiment of our invention is primarily designed for installation on weatherstrips in which the inturned edges of the flanges 40 are not spaced to provide recesses adapted to receive the flanges 18. The stop members are simply slipped over the flanges 40 and are in springable engagement therewith. They are anchored when installed by the prongs 37, as well as their frictional engagement with the flanges.

The embodiments of our invention illustrated in FIGS. 1 to 6 inclusive and 9 and have integral anchoring prongs, which is a desirable feature from the economy standpoint, and there is no attaching or anchoring means visible. The embodiment shown in FIG. 9 requires less stock than that of the other embodiments, but it is illustrated as it includes an anchoring flange which is engageable with the anchoring flange on the Weatherstrip. he same applies to the embodiment of FIGS. 7 and 8 which is especially desirable for heavy sash.

We have illustrated and described our invention in highly desirable embodiments thereof. It is believed that this disclosure will enable those skilled in the art to embody or adapt our invention as particular structural conditions may render desirable. We have not attempted to illustrate or describe other embodiments or adaptations as it is believed that this disclosure will enable those skilled in the art to embody or adapt our invention as may be desirable to meet particular conditions.

Having thus described the invention, what is claimed as new and desired to secure by Letters Patent is:

l. A combined Weatherstrip and sash balance for windows including lower and upper sash comprising a combined Weatherstrip and sash slide member having a central parting strip and forwardly facing channel-like bottom and top sash slideways, said member having forwardly projecting edge flanges constituting the outer walls of the slideways, said flanges being folded inwardly, sash counterbalancing means including coil springs supportedly mounted on said member at their upper ends and provided with sash engaging means at their lower ends, and sash stops for the lower and upper sash, the sash stop for the lower sash being disposed at the upper end of the slideway for the lower sash and the sash stop for the upper sash being disposed at the lower end of the slideway for such sash, said stops being of inwardly facing channel section and having outwardly projecting flanges on their outer arms supportedly engaged Within the inturned flanges of said Weatherstrip and having outwardly tapered prongs of channel section projecting from and integral with the inner arms and said flanges, the edges of said prongs being serrated.

2. A combined Weatherstrip and sash balance for windows including lower and upper sash comprising a combined Weatherstrip and sash slide member having a central parting strip and forwardly facing channel-like bottom and top sash slideways, said member having forwardly projecting edge flanges constituting the outer walls of the slideways, said flanges being folded inwardly, sash counterbalancing means including coil springs supportedly mounted on said member at their upper ends and provided with sash engaging means at their lower ends, and sash stops for the lower and upper sash, the sash stop for the lower sash being disposed at the upper end of the slideway for the lower sash and the sash stop for the upper sash being disposed at the lower end of the slideway for such sash, said stops being of inwardly facing channel section and having outwardly projecting flanges on their outer arms supportedly engaged within the inturned flanges of said Weatherstrip and having outwardly tapered prongs of channel section projecting from and integral with the inner arms and said flanges.

3. A combined Weatherstrip and sash balance for windows including lower and upper sash comprising a combined Weatherstrip and sash slide member having a central parting strip and forwardly facing channel-like bottom and top sash slideways, said member having forwardly projecting edge flanges constituting the outer walls of the slideways, said flanges being folded inwardly, and sash stops for the lower and upper sash, the sash stop for the lower sash being disposed at the upper end of the slideway for the lower sash and the sash stop for the upper sash being disposed at the lower end of the slideway for such sash, said stops having outwardly projecting flanges on their outer arms slidably and retainingly engaged within the inturned flanges of said rails, and having frame engaging means projecting from the ends thereof and drivingly engageahle with the adjacent window frame memher.

4. A combined Weatherstrip and sash balance for windows including lower and upper sash comprising a combined Weatherstrip and sash slide member having a central parting strip and forwardly facing channel-like bottom and top sash slideways, said member having forwardly projecting edge flanges constituting the outer walls of the slideways, said flanges being folded inwardly, and sash stops for the lower and upper sash, the sash stop for the lower sash being disposed at the upper end of the slideway for the lower sash and the sash stop for the upper sash being disposed at the lower end of the slideway for such sash, said stops having outwardly projecting flanges on their outer arms slidably and retainingiy engaged within the inturned flanges of said rails.

5. A combined Weatherstrip and balance for window sash having a forwardly facing channel-like slideway, said Weatherstrip member having a forwardly projecting flange on one edge thereof constituting a. side of the slideway and being folded inwardly, sash counterbalancing means including a coiled spring mounted on said member at one end thereof and provided with a sash engaging means at its other end, and a stop for said sash of inwardly facing channel section and having a laterally and outwardly projecting flange on one arm thereof retainingly engaged within the inturned flange of said sash rail and having an outwardly tapered frame engaging prong of channel section projecting from and integral with its inner arm and its said flange, the edges of said prong being serrated.

6. A combined Weatherstrip and balance for window sash having a forwardly facing channel-like slideway, said Weatherstrip member having a forwardly projecting flange on one edge thereof constituting a side of the slideway and being folded inwardly, sash counterbalancing means including a coiled spring mounted on said member at one end thereof and provided with a sash engaging means at its other end, and a stop for said sash of inwardly facing channel section and having a laterally and outwardly projecting flange on one arm thereof re tainingly engaged within the inturned flange of said sash rail and having an outwardly tapered frame engaging prong of channel section projecting from and integral with its inner arm and its said flange.

7. A combined Weatherstrip and balance for window sash having a forwardly facing channel-like slideway, said wea ierstn'p member having a forwardly projecting flange on one edge thereof constituting a wall of the slideway and being folded inwardly, and a stop for said sash of inwardly facing channel section and having a laterally and outwardly projecting flange on one arm thereof retainingly engaged within the inturned flange of said sash rail and having an outwardly tapered frame engaging prong of channel section projecting from and integral with its inner arm and its said flange, the edges of said prong being serrated.

8. A combined weathers-trip and balance for window sash having a forwardly facing channel-like slideway, said Weatherstrip member having a forwardly projecting flange on one edge thereof constituting a wall of the slideway and being folded inwardly, and a stop for said sash of inwardly facing channel section and having a laterally and outwardly projecting flange on one arm thereof retainingly engaged within the inturned flange of said sash rail and having an outwardly tapered frame engaging prong of channel section projecting from and integral with its inner arm and its said flange.

9. A combined Weatherstrip and balance for window sash having a forwardly facing channel like slideway, said Weatherstrip having a forwardly projecting flange on one edge thereof constituting a wall of the slideway and folded inwardly, a sash counterbalance means mounted on said Weatherstrip as a unitary part thereof, and (a stop for said sa'sh having a portion retainingly engaged with said flange and having an integral prong drivingly engageable With a window frame member, said stop member being slidable longitudinally of said Weatherstnip While in engagement with said flange thereof.

10. A combined Weatherstrip and balance for Window sash having a forwardly facing channel-like slideway, said Weatherstrip having a forwardly projecting flange on one edge thereof constituting a wall of the slideway and folded inwardly, a sash counterbalance means mounted on said Weatherstrip as a unitary part thereof, and a stop for said sash having a portion retainingly engaged with said flange and having means drivingly engageable with a window frame member.

11. A combined Weatherstrip and balance for window sash having a forwardly facing channel-like slideway,

said Weatherstrip having a forwardly projecting flange on one edge thereof constituting a wall of the slideway and having an inwardly folded portion at one end thereof, and a stop for said sash having an outwardly projecting flange retainingly engaged with the inwardly folded portion of said Weatherstrip and laterally and outwardly supported theneby and having an integral frame engaging prong projecting therefrom, said prong having a serrated edge.

12. A combined Weatherstrip and balance for window sash having a forwardly facing channel-like slideway, said Weatherstrip having a forwardly projecting flange on one edge thereof constituting the outer wall of the slideway and having an inwardly folded portion at one end thereof, and a stop for said sash having an outwardly projecting flange retainingly engaged the inwardly folded portion of said Weatherstrip and laterally and outwardly supported thereby and having an integral frame engaging prong projecting therefrom.

References Cited in the file of this patent UNITED STATES PATENTS 

10. A COMBINED WEATHERSTRIP AND BALANCE FOR WINDOW SASH HAVING A FORWARDLY FACING CHANNEL-LIKE SLIDEWAY, SAID WEATHERSTRIP HAVING A FORWARDLY PROJECTING FLANGE ON ONE EDGE THEREOF CONSTITUTING A WALL OF THE SLIDEWAY AND FOLDED INWARDLY, A SASH COUNTERBALANCE MEANS MOUNTED ON SAID WEATHERSTRIP AS A UNITARY PART THEREOF, AND A STOP FOR SAID SASH HAVING A PORTION RETAININGLY ENGAGED WITH SAID FLANGE AND HAVING MEANS DRIVINGLY ENGAGEABLE WITH A WINDOW FRAME MEMBER. 